Filling fork and stop motion for oriental rug looms



Jan. 29, 1929. 1,700,664

M. A. BAUER FILLING FORK AND STOP MOTION FOR- ORIENTAL R UG LOOMS FiledM y 18, 1927 5 Sheets-Sheet 1 Jan. 29, 1929.

M. A. BAUER FILLING FORK AND STOP MOTION FOR ORIENTAL RUG LOOMS FiledMay 18, 1927 s Sheets-Sheet 2 Q W I I i N F 9 .:':':.l:.':{ ,H I

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.J I I Y l F O I I I i w R Q 1 L w a b 1% M/ZZAFA. E0 148% a, M -7s Jan.29, 1929; 1,700,664

M. A. BAUER v FILLING FORK AND STOP MOTION FOR ORIENTAL RUG LOOMS F le y18, 1927' I -5 Sheets-Sheet 3 Jan. 29, 1929.-

M. A. BAUER FILLING FORK AND STOP MOTION FOR ORIENTAL RUG LOOMS 5Sheets-Sheet 4 Jan. 29,1929.

M. A. BAUER FILLING FORK AND 'STOP MOTION FOR ORIENTAL RUG LOOMS FiledMay 8, 7

5 Sheets-Sheet Patented Jan. 29, 1929.

names BAUER, 0F WORoEsTER, MASSACHUSETTS, ASSIGNORTb 'M. J. vvvmr'rnnr.

ASSOCIATES, A VO-LUNT ARY.ASSOCIATION' OF MASSACHUSETTS. j

E ma. EORK AND sror MOTION OR ORIENTAL RUG :L'oOMs.

Application filed May is,

This invention relates to a filling fork and stop'motion particularlydesigned for use on an'oriental rug loom of the general type shown inthe Renard Patent No. 894,287. I

These looms operate by inserting and heating'up two successive picks offilling, after which the lay' and reed remain stationary while a row ofyarn tufts-are inserted and knotted about the warp threads. After afull'row of tufts is inserted, two more picks of filling are insertedand beaten up.

It is one object of my invention to provide 7 a filling fork and stopmotion for such a loom,

so constructed that the loom willbe promptly stopped in the absenceoffilling. Provision is also made for stopping the loom upon fail ure ofthe shuttle to box. I

' A further object is to provide'means for clamping and t'en'sioning thefilling thread by Fig. 7 is the filling fork while it is being beatenup, and for momentarily relieving the tension as the lay moves backwardafter the beating in Of the second pick of filling, so that the fillingwill remain close to the fell of the cloth, per: mitting the yarntuftsto be inserted in the required position.

Myinvention further relates to. arrangements and combinations of partswhich will be hereinafter described. and more particularly pointed outin the appended claims- 7 A preferred form of theinvention is shown inthe drawings, in which Fig. '1 is a front elevation of a portion of aloom having my improved stop motion applied therto;

Fig. 2 is an end elevation of the parts shown in Fig. 1, taken along theline 22 in Fig. 1..

Fig. 3 is a sectional end elevation, taken along the line 3-3 in Fig. 1;

Fig. 4 is a detail plan view of a portion of the lay andlfilling fork,looking in the direction of the arrow 4 in Fig. 3:

Fig. 5 is a sectional elevation, taken along the line 5-5 of Fig. 4; r

Fig. 6 is an end elevation of certain parts of the stopmotion with thelay shown insection; V

an end elevation, showing certain of the parts in F 21mdifi'erentoperative position;

Fi 8 is a sectional plan View, taken sub stantially along the line 8 8in Fig. 2, and

Figs. 9 to 13, inclusive, are detail plan 1927. Serial N0. 192,445.-

views, illustrating successive steps in the operatlon of thefilling forkand stop motion. v Referring to. the drawings, I have shown a loomcomprising a frame 20 ,(Fig. 2) on which a lay 21 is mounted tooscillate in the usual manner. A filling fork 22 is provided at each endof the lay 21, as indicated in Fig. '9, said filhng forks beingconnected .tomove simultaneously and to operate together. A

slots 29, through which the rods or fingers i i 26 will pass freelyif-no filling F isinterposed beneath the fork.

'description of the operationof one of the forks Wlll apply equally tothe'o'peration of When the fillingis in its normal position, as

shown in Figs. 14 and 5, the fork will remain in the position indicatedin Fig. '5 but will ex' ertsubstantial tension upon the filling F whlleit is beingbeatenup to the fellof the cloth C. 7 Each sliding plate 25(Fig. 6) is connected at its lower end to a link 30, which in turn ispivoted .to the forwardly project ing end of'an arm 31 fixed onaarockshaft 32. A spring 33 is connected at its forward end to each link 30and'at its rearend to a "pin 34 (Fig. 3)v fixedo'n the shaft32 or on thepivotally Ward dotted line position :shown in Fig. 3v to the rearward"full'line position as the lay moves back. V

- An arm 38 2) projects forward from the rock shaft 32 and rests uponabent lever 39 (Fig. 1 pivoted at 40.0nthel0om'frame' 20, having a stud41 resting upon a collar 42 or fixed on an intermittently. rotatingshaft 43.

The collar 42 is .providedwith a series of cam lugs 44, 45 and .46 whichsuccessively engage thestud '41, momentarily raising the lever 39 andthe arm :38, andgrockin-g .ltheshaft 32, thus swinging the arms 31 and[raising the filling for s. 11ft will be [noted that the lug 46 is ofless heightthan the lugs44. and

- 45 and that it consequently does not raise the filling fork as high asthe other twolugs for a reason to be explained.

An arm 50 (Fig. 2) pro ects rearward from the rock shaft 32 and ispivotally connected at 51 to an upright rod 52 projecting freely throughan opening in the rear end portion of a stop motion lever 53 pivoted at54 on the 100m frame. A nut 55.is threaded on the rod 52 and forms anabutment to engage the lever 53 when the filling fork drops through ithe slots29- in the lay upon absence of filling.

A stud 56 (Figs. 2 and 8) on the lever 53 extendsthrough a longsegmental slot 57 in a-lever 58 which is pivoted at 59 on an arm 60secured'to a shaft 61., A handle 62 projects forwardfrom the lever 58and normally I counterbalancesthe rear portion of the lever 58 and alsothe forwardly projecting portion of the lever 53. Adjustable weights 68'(Fig.

2) may be provided on the rea-r'end of the lever 53 for the samepurpose. r

The lever 58is provi. led at itsrear side with a lug or projection 65(Fig. 8) adapted to be engaged by a shoulder 66 (Fig. 2) on a disc67.mounted to rotate intermittently on a shaft 68.

[The upper end of the arm 60 is notched as indicated at.68 in Fig. 7 andnormally engagesa studor roll 69"(Fig. 2) in the rear end of a lever 70mounted on a fixed pivot 71.

" A spring 72 connected by-a link 78 to the lever 70 causes the roll 69to befirmly seated in the notch 68.

Theshaftfil (Fig. 7) is provided with an arm 75 having a stud 7 6positioned in a slot I 77 in a lever 7 8 mounted on a fixed pivot 79.--The lower end of the lever 7 8 is connected by i a link80 to a clutchlever 81 having a fork 82 engaging a yoke 88 in a clutch collar 84. Solong as the filling extends under one or the other of the filling forks22, the fork will beheld in such a position that the nut on the'rod 52(Fig. 2)cannot engage the. lever 53 and depress the stud 56. If,however, the

filling is exhausted, the filling fork will descend to the positionindicated in Fig. 6, de-

pressing the stud 56, correspondingly de-.

pressing the lever 58 so that the projection on the lever comes into thepath of the shoulder 66 onthe'plate 67 and'is moved rearward thereby,thus shifting the stop motion parts from theposition shown in Fig.2 tothe stopping position shown in Fig. 7, and with drawing'the clutch 84from engagement with its driving member;

Itis. also desirable to stop the loom when the shuttle fails'to box, andfor this purpose Ihave provided a bell crank 90 (Fig. 2) pivoted at 91on a bracket 92 on the rear of the. lay

wardly projecting arm"9 l of thebell crank 90 is provided with a pin 95resting on top and engaging the back binder 93. A forof the lever 58previouslydescribed.

When the shuttle 1s properly boxed, the pin 95 is raised andinoperativebut if the shuttle fails to box, a spring 96 will draw thebell.

crank 90 forward, thus depressing the lever 58 and causing the stoppingof the loom as previously described.

The operation of the parts during the-ordinary running of the loomis'best indicated in Figs. 9to 13. The position of the parts duringtheinsertion of a row of pile tufts is as indicated in Fig.9, with theshuttle S in the left hand shuttle box. After the row of pile tufts isinserted, the shuttle is picked to the right hand position indicated inFig. 10,'the filling. forks-being raised by the cam lug 44 (Fig. 1) justat the time the shuttle is picked.

of the forks falls upon the filling F, clamping it against the lay endplate 28 and applying tension thereto as the lay moves forward to andthe e11- the position shown in Fig. 11.

The lay then moves rearward ing forks are momentarily raised by the camlug .5 (Fig. 1) while the shuttle is sent to the left hand box, Thefilling forks are again released, tensioning the filling during theforward movement of the lay as previously-described.

It isnecessary, however, to prevent therelatively heavy filling forkfrom dragging the filling rearwardas the lay moves back andis about tocome to rest, as it is essential that the filling remain beaten inclosely against the .fell, of the cloth while the next row of pile tuftsis being inserted. Accordingly, the third'cam projection 16. (Fig.- 1)raises the filling fork slightly, allowing the filling to slip forwardunder the fork as the lay moves The forks are immediately released andone i as indicated in Fig. 12. r

rearward from the position shown inFig. 12 to the position shown in Fig.13'. In this manner sufficient slack is provided to prevent the shuttleby the knotting-in of the that I have: also arranged said stop motion sothat it will tension the filling during the beat-up, and that I haveparticularly arranged to relieve the tension during the final movementof the lay to idle or inoperative position.

Having V the advantages thereof 1 do not wish to be limited to thedetails herein disclosed otherwise thanas set forth in the claims, butwhat I do claim is thus described my invention and i 1. In a loom havingalternate operative I and inoperative periods for the shuttle, a pair 1of filling forks, means to raise said forks to permit passage of theshuttle, said forks be- 105 pulling the filling away from the fell ofthe j I filling to tension said filling during the beat ing up thereof,and means to raise said forks .to momentarily release the tension onthe.

filling as'the lay moves rearward just prior to its inoperative restperiod.

' 2. In a loom having alternate operative and inoperative periods forthe shuttle, a pair of filling forks, means to raise saidforks to permitpassage of the shuttle for two successive picks, said forks beingreleased and resting by gravity on the filling to tension-said fillingduring the beating 'up thereof, and means toraise said forks tomomentarily release the tension on the filling as the lay moves rearwardafter the second pick of filling is beaten up and just prior to theinoperative rest period of the shuttle.

3. In a loomhaving alternate operative and inoperative periods for theshuttle, a pair of filling forks, means to raise said forks to permitpassage of the shuttle for two successive picks, said forks beingreleased and resting by gravity on the filling to tension said fillingduring the beating up'thereo'f, and means to raise said forks tomomentarily release the a tension on the filling as the lay movesrearward after the second pick of filling is beaten up and just prior tothe inoperative rest period of the shuttle, said fork-raising meansthereupon becoming inoperative and releasing said forks to hold thefilling during the h period of rest of the shuttle.

4. In a loom having alternate operative and inoperativeperiods for theshuttle, a pair of filling forks, means to raise said forks to permitpassage of the shuttle, said forks being released and resting by gravityon the filling to tension said filling during the beating up thereof,and means to raise said forks to momentarily release the tension on thefilling as the lay moves rearward just prior to the inoperative restperiod of the shuttle, said combination, a filling fork movablevertically through slots in said lay and resting freely by gravity onthe filling to tension said filling during the beating up thereof,andmeans to momentarily lift said filling fork to relieve the fillingtension and immediately thereafter to rele'asesaid filling fork just.prior to the beginning of said period of rest, of saidlay.

freely by gravity on the filling to tension said 6. In a loom forweaving tufted fabric, alay, and a filling fork movable verticallyfilling during the beating up thereof, and

of during rearward movement of said lay and fork, said fork being thenreleased to tion, a filling fork normally resting by gravity on thefilling to tension the same, means to twice raise said forksubstantially to permit flights of the shuttle, and means to raise saidan oriental rug loom in which two 'means to raise said fork andmomentarily release the filling for forward movement therer rforkslightly to allow the filling to slip relarearward movement of theshuttle, said latter means immedlately releasing said fork as suchrearward movement is completed.

tively forward under said fork during final 1 8. In a loom, a stopmotion including a lever having a shoulder thereon, a rotating ff 7member having a lug effective to engage said shoulder and stop the.loom, said lever being normally inoperatively positioned with saidshoulder out of the path of said lug, a filling fork, and meanscontrolled thereby effective to be stopped.

9. The combination in aloom as setforth in claim 8, inwhich said leverhas a long arcuate slot and 1n which said controlllng means 1ncludes anarm having a pin extending into said slot and thus positioning saidlever.

10. The combination in a loom as set forth 7 MARIUSA. BAUER.

